Lubricating device



March 7, 1933. NEWMARK 1,!900,0?1

' LUBRICATING DEVICE Filed Dec. 9, 19151 Patented Mar. 7, 1933 UNITE STATES MORRIS NEWMARK, OF NEW YORK, N. Y.

LUBRICATING DEVICE Application filed December 9, 1931. Serial No. 579,959.

This invention relates to lubricating devices, and more particularly to the class of lubricating devices adapted to supply grease under pressure to'surfaces requiring lubrication.

-Oneof the objects of theinvention is to produce a device of this character, the delivery end of which may readily be attached to and detached from a nipple or lubricant receiving receptacle. 1 1

Another object ofthe invention is to provide a device of the nature referred to in which the pressure upon the lubricant will effectively force the delivery end of the device against the nipple and form agreasetight joint at the contacting surfaces of the said elements. v

v A further object of the invention is to provide means for releasably locking the lubrieating device in place when supplying lubricant to any surface. s

A still further object of the'invention is to provide means for returning theworking parts to normal position when the device s unlocked. I

Another object is to produce a device of thecharacter described in which the maximum'lsimplicity of construction and operation is secured.

Other objects and advantages will appear as the nature of the improvements is better understood, the invention'consisting substantially in the novel arrangement and co-relation of parts herein fully described, and 1llustrated in the accompanying drawing,

wherein similar reference characters are used to describe corresponding parts throughout the several views, and then finally pointed out and specifically defined and indicated in the appended claims.

, The disclosure made the basis of exemplifying the present inventive concept suggests a practical embodiment thereof, but the invention is not to be restricted to the exact details of this disclosure, and the latter, therefore, is to be understood from an illustrative,

rather than a restrictive standpoint.

The inventive idea involved is capable of receiving a variety of mechanical expressions,

50. one of which, for the purpose of illustration,

is'shown in the accompanying drawing, in. which- Figure 1 is a view in elevation of my improved lubricating device in position ready to be attached to the nipple leading to the surface to be lubricated. I v

Figure 2 is a vertical section thereof taken on line 2-2 Figure 1 showing the pilot in elevation.

Figure 3 is a similar view to Figure '2, but showing the pilot in section and the device in operated position and attached to the nipple.

Figure 4 is a bottom plan view looking towards the end of the barreland Figure 5 is a perspective view of the pilot.

Referring now to the drawing in detail 9 indicates a nozzlehaving a plunger 10 slidably and rotatably mounted in a barrel 11 and provided at its upper end with an internally screw threaded opening 12 into which is threaded the lower end of a suitable tube or conduit 13 leading from a pressure lubricator 14 indicated in dot and dash lines Figure 1.

In the present form of my invention I have shown the bottom of the barrel 11 as provided 7 with a cutout 15 the upper portion 16 of which is conical and the lower portion 17 of which is straight, so that it may fit over a nipple 18 screwed into an opening 19 in a bearing 20 and in communication with the part of to be lubricated,fthe said nipple be ing provided with a conical head 22 and a cylindrical body portion 23.

The lower end of the plunger 10 has a reduced screw threaded portion 24 over which there is screw threadedly fitted a tubular casing 25 provided at the bottom thereof with a conical opening 26. The upper end of the said opening is of somewhat smaller diameter than the diameter of the central bore 28 of the casing 25, so as toform a shoulder or internal flange 29. This flange 29 acts as a seat for a cupped leather or other suitable washer 30 encircling the shoulder 31 of a pilot or plug 32 the upper cylindrical shank 33 of which extends into the central passage 34 in communication with the lubricating pressure device. The said pilot is further provided with a lower extension 38 and a pair of openings 35in the upper shoulder 36 which converge towards the bottom and communicate with a central opening 37.

To attach my device to the nipple 18, I slide the device from one side over the nipple and press the plunger downwardly against the tension of a coiled spring 40 in the lower portion of the barrel 11 until the screws 41 joint, the top surfaces ofthe extension 33,

Q, the bearing, the plunger 10 is revolved to normal unlocked position and the spring willtion with a nippleorgrease receptacle having,

reach the bottom of the slots 42 after which the plunger 10 is rotated in the direction of the arrow Figure 1 and is locked in the slotted extension 43.

The depression of the plunger 10 causes the washer 30 to be seated against the top surface of the head 22of the nipple 18 and also causes the pilot extension 38 to force the ball check valve i i to be depressed against th e tension of, a spring 45 seated within the inner bore of the said nipple.

/Yith theparts in this position the lubricating pressure device is operated to force lubricantthrough the passage 34 and. the pilotopenings 35. and 37 into the nipple 18 and to'the member to be lubricated, the pressure of the lubricant forcing the pilot .32 and washer 30. securely against the head of the nipple to form a leak proof joint at the said head. i

It will be understood that the pressure under which the lubricant is forced into the nipple. is very high, ranging anywhere between two thousand and nine thousand pounds which I utilize to press the pilot against" the nipple to form the leak proof and the shoulder 36 .as wellas the lower surfaces of the inclined ,openings 35- forming res sisting surfaces for said pressure.

After sufficient lubricant is injected into return same to normal upper position shown in Figures 1 and 2.

While I have shown my device in connec- Having described my invention whatI- claim as new and desire to secure byLetters Patent is;

1,. A nozzle adapted to be securedto a pressure lubricating device, comprising a barreha plunger rotatably and depressibly mounted therein and having a bore in communicationwith the pressure device, means '6 feleasably locking the plunger in de pressed position, a perforated pilot operatively mounted in the said bore, and a casing for maintaining the pilot in the said bore.

2. A. nozzle adapted to be secured to a pressure lubricating device, comprising a barrel, a plunger rotatably and depressibly mounted therein and having a bore in communication with the pressure device means for releasably locking the plun er in depressed position a perforated pilot, a shank on said pilot eX- tendinginto the saidbore, a casing for maintaining the pilot in the bore and spring means forreturning the plunger to normal upper position when in unlocked position.

3. In a device for attaching a pressure lubricator to a part to be lubricated, the combination of a nipple, a barreLadaptedto ope eratively. engage said nipple, a plunger..depressibly mountedin thesaid barrel, and having a bore in communication with the pres.- sure lubricator, means forreleasably locking the barrel in depressed position, a perforated. pilot operatively mounted in the said plunge er adapted to, enter the. nipple when the. plunger is depressed and. form a leak proof connection. therewith when the lubricator is operated, andspringmeans for returningthe plunger to normal upper position when in iuilockedposition.

4. In a device for attaching a pressure.lu-. bricator to a part to be lubricated, the cjo nbination of a lubricant receptacleincluding a, check valve carried by the parttobe lubricated, a barrel adapted to operatively engage the said receptacle, and. provided with a guiding and locking slot, a. plunger depressibly and rotatablymounted in the barrel, and provided-with a bore in communication withthe. pressure lubricator, a pinyin the plunger extending through the said slot to lock. the plunger, in depressed position, a shouldered plugoperatively mountedin the plunger bore andprovid-ed with a substan tially Y shaped opening adapted to communicate with the. interior of the receptacle when the plunger. is depressed,.a projection on the plug at thelowerend ofthe Y shaped opening, a seat atthe lower end of the plunger,'and a washer, on the plug surrounding the said projection forthe purpose specified.

5. Anozzle adaptedto be secured to a pressure lubricating device, comprising a barrel, .a plunger rotatably and depressibly. mounted therein and .having a bore in communication with the pressure device, means for releasably locking. the. plunger in. depr essed position, a tubular casing operatively secured to the lower end of the plunger and providedavith a shouldered opening-at the bottom thereof, a plug, operatively mounted in the said plunger and casing, and provided with a substantially Y shaped open,- ing, and'a ,cupped..washer between the plug and shouldered opening in; the casing.

6,; In a pressurelubricating device nozzle,

adapted to be connected to a lubricant receptacle, a depressible hollow plunger in communication with the lubricating device, a lubricant admitting plug at the bottom of the plunger comprising a shank at the top thereof extending into the plunger, an enlargement at the bottom of the shank, a reduced shouldered portion at the bottom of the enlargement, a reduced projection on the shouldered portion, the said enlargement, shouldered portion and projection being provided with a substantially Y shaped opening com- I mencing at the top surface of the enlargement and terminating at the bottom of the projection, a tubular casing at the bottom of the plunger through which the plug extends, an internal flange on the casing, and a cupped washer between the shouldered portion and the internal flange.

7. In a pressure lubricating device nozzle, adapted to be connected to a lubricant receptacle, a depressible hollow plunger in communication with the lubricating device, a lubricant admitting plug at the bottom of the plunger comprising a shank at the top thereof extending into the plunger, a projection at the bottom thereof adapted to enter the lubricant receptacle, the said plug having a substantially Y shaped opening terminating at the bottom of the projection, and a cupped Washer on the plug through which the projection extends for the purpose specified.

8. In a pressure lubricating device nozzle, adapted to be connected to a lubricant receptacle, a depressible hollow plunger in communication with the lubricating device, a lubricant admitting plug at the bottom of the plunger comprising a shank at the top thereof extending into the plunger, a projection at the bottom thereof adapted to enter'the lubricant receptacle, the said plug having an opening terminating at the bottom of the the projection, and a cupped washer on the plug through which the projection extends for the purpose specified.

In testimony whereof I hereunto aflix my signature.

MORRIS N EWMARK. 

